AsyncUsageAnalyzers by: Sam Harwell et. al.

A collection of analyzers related to best practices for writing asynchronous code.

AutoMapper by: Jimmy Bogard

A convention-based object-object mapper. AutoMapper uses a fluent configuration API to define an object-object mapping strategy. AutoMapper uses a convention-based matching algorithm to match up source to destination values. Currently, AutoMapper is geared towards model projection scenarios to flatten complex object models to DTOs and other simple objects, whose design is better suited for serialization, communication, messaging, or simply an anti-corruption layer between the domain and application layer.

BouncyCastle by: Bouncy Castle Project Contributors

The Bouncy Castle Crypto package is a C# implementation of cryptographic algorithms and protocols, it was developed by the Legion of the Bouncy Castle, a registered Australian Charity, with a little help! The Legion, and the latest goings on with this package, can be found at [http://www.bouncycastle.org](http://www.bouncycastle.org). In addition to providing basic cryptography algorithms, the package also provides support for CMS, TSP, X.509 certificate generation and a variety of other standards such as OpenPGP.

BouncyCastle.NetCore by: BouncyCastle

a BouncyCastle redist package include .Net Framework and .Net Core/ Standard support

BuildBundlerMinifier by: Mads Kristensen

Bundles and minifies CSS, JS and HTML files

Castle.Core by: Castle Project Contributors

Castle Project Core, including DynamicProxy, Logging Abstractions and DictionaryAdapter

CommonMark.NET by: Kārlis Gaņģis

.NET library for converting Markdown documents to HTML according to the CommonMark specification. Optimized for maximum performance and targets every .NET version since 2.0, including PCL, Mono and .NET Core.

DocumentFormat.OpenXml by: Microsoft

The Open XML SDK provides tools for working with Office Word, Excel, and PowerPoint documents. It supports scenarios such as: - High-performance generation of word-processing documents, spreadsheets, and presentations. - Populating content in Word files from an XML data source. - Splitting up (shredding) a Word or PowerPoint file into multiple files, and combining multiple Word/PowerPoint files into a single file. - Extraction of data from Excel documents. - Searching and replacing content in Word/PowerPoint using regular expressions. - Updating cached data and embedded spreadsheets for charts in Word/PowerPoint. - Document modification, such as removing tracked revisions or removing unacceptable content from documents.

DotNetCore.NPOI by: NCC Savorboard

A .NET library for reading and writing Microsoft Office binary and OOXML file formats.

DotNetZip by: Dino Chiesa

DotNetZip is an easy-to-use, FAST, FREE class library and toolset for manipulating zip files or folders.

Fido2 by: Fido2

FIDO2 .NET library (WebAuthn)

Handlebars.Net by: Rex Morgan

Blistering-fast Handlebars.js templates in your .NET application.

HtmlAgilityPack by: Simon Mourrier Jeff Klawiter

This is an agile HTML parser that builds a read/write DOM and supports plain XPATH or XSLT (you actually don't HAVE to understand XPATH nor XSLT to use it, don't worry...). It is a .NET code library that allows you to parse "out of the web" HTML files. The parser is very tolerant with "real world" malformed HTML. The object model is very similar to what proposes System.Xml, but for HTML documents (or streams).

Humanizer by: Claire Novotny Mehdi Khalili

Humanizer meets all your .NET needs for manipulating and displaying strings, enums, dates, times, timespans, numbers and quantities

Ical.Net by: Rian Stockbower Douglas Day

An iCalendar (RFC 5545) control library for .NET.

Independentsoft.Office.Odf by: Independentsoft

Independentsoft.Office.Odf is Open Document Format API for .NET Framework, .NET Core, .NET Standard, Mono, Xamarin.

J2N by: NightOwl888

J2N is a library that helps bridge the gap between .NET and Java. It provides components to assist with porting Java code to .NET, such as collections, adapters, and extensions. It contains some features from Java that also make it generally useful in any .NET application.

JetBrains.Annotations by: JetBrains

JetBrains.Annotations help reduce false positive warnings, explicitly declare purity and nullability in your code, deal with implicit usages of members, support special semantics of APIs in ASP.NET and XAML frameworks and otherwise increase accuracy of JetBrains Rider and ReSharper code inspections. All usages of JetBrains.Annotations attributes are erased from metadata by default, which means no actual binary reference to 'JetBrains.Annotations.dll' assembly is produced. If you need to preserve these attributes in metadata, just define 'JETBRAINS_ANNOTATIONS' conditional compilation symbol in your projects.

jnm2.ReferenceAssemblies.net35 by: Microsoft

A community answer to Microsoft’s decision to single out net35 by excluding it from the https://www.nuget.org/packages/Microsoft.NETFramework.ReferenceAssemblies/ package. This package provides the .NET Framework 3.5 reference assemblies so that net35 projects can be built using the dotnet CLI. Example project that targets multiple frameworks: <Project Sdk="Microsoft.NET.Sdk"> <PropertyGroup> <TargetFrameworks>net35;net40;netstandard2.0;netcoreapp3.0</TargetFrameworks> </PropertyGroup> <ItemGroup> <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.0" /> <PackageReference Include="jnm2.ReferenceAssemblies.net35" Version="1.0.1" /> </ItemGroup> </Project>

libphonenumber-csharp by: Patrick Mézard Aidan Bebbington Google libphonenumber contributors

C# port of Google's common Java, C++ and Javascript library for parsing, formatting, storing and validating international phone numbers. For usage samples: http://code.google.com/p/libphonenumber/